ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Effect of Music Rhythm on Growth Performance of Growing Pigs)

ผู้เขียน:คมกฤช เอกฉัตร, นายชาญวิทย์ วัชรพุกก์, ศาสตราจารย์

สื่อสิ่งพิมพ์:pdf

Abstract

Fifteen crossbred barrows (Largewhite X Landrace X Duroc) with average live weight of 30 kg. were divided into 3 treatments (5 pigs/treatment) in a completely randomized design experiment to determine the effects of audio-stress on their growth performance. All the animals were fed with the corn-soybean based diet. The treatments were natural (silence) sounds, light music and rock and roll music during feeding times, respectively It was found that there was no significant difference in dry matter but the DRG of the pigs in the fast rhythm music groups was lower (P<0.05) and FCR was higher (P<0.05) than the other two groups. It was concluded that loud noise and fast rhythm music could lower growth performance of the pigs.

Article Info

Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 028, Issue 4, Oct 94 - Dec 94, Page 640 - 643 |  PDF |  Page

ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:การจับสัตว์น้ำโดยใช้อวนติดสามชั้นต่างสีภายใต้อิทธิพลของข้างขึ้นและข้างแรม

ผู้เขียน:นายชัยชาญ มหาสวัสดิ์, รองศาสตราจารย์, นายลิขิต ชูชิต

สื่อสิ่งพิมพ์:pdf

Abstract

An experiment of the catches of fish by white, green and violet trammel nets at the depth of 3 meters, was conducted at night around Sriracha Bay at Sriracha Fisheries Research Station during 2-3 days before and after full moon and new moon in June to September, 1987. Factorial experiment in randomized block design was engaged. The results revealed that the catch efficiencies of white, green and violet trammel nets show no significant differences upon the lunar periodicity. In the full moon night, a large number of silver biddy ( Gerres filamentosus ) was caught with highly significant against pony fish ( Leiognathus brevirostris ) and swimming crab ( Portunus pelagicus ) . In the new moon night, a lot of silver biddy and swimming crab were caught with highly significant against pony fish. The efficiency of white trammel net was the best in full moon operation for shrimps and cephalopod and the efficiency of green trammel net operation was the best for aquatic animals even though they showed no significant differences among the three colour of them.

Article Info

Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 024, Issue 4, Oct 90 - Dec 90, Page 467 - 478 |  PDF |  Page